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Cromes Metallurgical Consulting, a PLLC

Metallurgical - Mineral Processing Consulting and Engineering Services

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Mission Statement

As a consultant to the mining industry, our goal is to provide contract extractive metallurgical and environmental services including (but not limited to) in-plant diagnostic and engineering analyses, multi-laboratory metallurgical project coordination and interpretation, development of standard operating guidelines and general technical advising.
  We also provide proactive metallurgical project management from the Preliminary Economic Assessment stage all the way through to operational troubleshooting, utilizing any of our associates or your laboratory facility of choice.

With an expanded network of associates and contacts throughout the United States, Canada, England and Mexico, we can help you to solve your toughest metallurgical issues.

Company History

Cromes Metallurgical Consulting was formed in the United Kingdom in 2005 by Melanie Bond Cromes, PE Chem Eng (AK, 2004), with clients in Great Britain, Ireland, Canada and Mexico.

In late 2008 we moved our office to the United States and have furthered our work with clients in the USA, Brazil and the Caribbean.  Since 2010 we have operated as an associate of Blue Coast Metallurgy, Ltd. of British Columbia, Canada.

In September, 2013, Melanie Bond Cromes became licensed as a Professional Engineer in the State of South Dakota, and Cromes Metallurgical Consulting PLLC became a certified professional firm in the State of South Dakota.
Select Projects

Midas Gold Inc. - Golden Meadows/Stibnite Project; PEA and PFS metallurgical project management.


VMC, LLC - Deadwood Standard; Assistance with historical metallurgical data review and design of future metallurgical program.


Globestar/Perilya - Cerro de Maimon; Assistance with metallurgical laboratory upgrades and flotation circuit performance evaluation.


Kinross Gold Corp.
 – Paracatu Brasil; Assisted with in-plant audit of gravity/flotation plants.

Barrick/Homestake Mining Company  Assistance with analysis and troubleshooting of the Blacktail and Richmond Hill water treatment plants.


Farallon Mining Ltd G-9; Assisted  with troubleshooting and optimization of the copper/zinc flotation circuits and thickeners.


Idaho General Mines, Inc. (Eureka Moly, LLC) – Mt Hope Project; Mo flotation; Project management for flotation, FLEET, mineralogy and geometallurgy.

Arcon (Lundin) – Galmoy Mine; Pb-Zn flotation; In-plant flotation testwork, metallurgical assistance.

Blue Note Minerals – Caribou; Pb-Zn flotation; commissioning support team member.

Industrias Peñoles – Plant audit team member for La Ciénega (Au), Naica (Pb-Zn) and Bismark (Pb-Zn) sites.